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3/31/2015 8:57 AM PDT BY TMZ STAFF

He's worth a gazillion dollars (or something like that) ... but even super rich "Shark Tank" star Robert Herjavec thinks paying $87,500 for a ringside seat to May vs. Pac is nothing short of crazy.

Herjavec was leaving Craig's in West Hollywood Monday night when we asked about the first fight tickets to hit the market -- and his reaction is interesting ... considering he's exactly the kind of guy who could actually consider forking over the dough for a seat.

3/31/2015 8:45 AM PDT BY TMZ STAFF

Terrence Howard owes his ex-wife $508,000 and counting ... so she claims, and she's gunning for a payday.

Michelle Ghent claims Terrence has been hiding assets and grossly undervaluing what he makes a month to avoid his spousal support obligations.

TMZ broke the story ... Terrence is required to pay Michelle $5,800 a month in spousal support, but if he makes more than $62,500 a quarter, she gets 21% of the excess. According to her docs, Terrence made $125,000 an episode in Season 1 and he's sure to get a huge raise.

Michelle claims Terrence has not only failed to pay the 21%, but she says he's way behind in the $5,800 monthly obligation ... to the tune of more than $100k.

Also according to Michelle's docs, Terrence is using his first ex-wife's business to divert his earnings, making it appear he earns very little. In fact, Terrence claimed as recently as November all he was getting in the way of income was just shy of $6k a month ... money that was paid by the ex-wife's business.

"Empire" started shooting in September, so that's when the bucks started rolling in.

But all good things come to an end, and according to the divorce, Michelle's spousal support ends next year.

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3/31/2015 12:20 AM PDT BY TMZ STAFF

EXCLUSIVE

"Jerry Springer" producer Jill Blackstone did not carry out her sister's wish to end her life -- she murdered her ... at least that's what law enforcement now believes.

Our law enforcement sources say Wendy Blackstone -- who was deaf and partially blind -- did not want to end her life. During the initial stage of the investigation we're told cops thought this might have been a double suicide plan where Jill backed out at the last minute, but now they believe it's simple murder.

TMZ broke the story ... Wendy was found dead in their garage and Jill had severe carbon monoxide poisoning from a lit barbecue in their closed garage. We're now told in addition to the coals under the grill, there was a metal trash can filled with charcoal which had also burned.

Cops determined early on ... the suicide note found in Wendy's hand was not written by her ... they believe Jill wrote it.

Blackstone was arrested for murder earlier this month but the D.A. felt there wasn't enough evidence to make a case, so prosecutors sent it back to the LAPD for further investigation. In the meantime, Jill remains free.

But now we're told ... after more probing, the cops firmly believe it was murder.

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3/30/2015 3:47 PM PDT BY TMZ STAFF

EXCLUSIVE

French Montana was not under the influence of alcohol when he was photographed drinking Ciroc from the bottle while cruising on one ofDiddy's Sea-Doos ... so claim people close to the rapper.

As we previously reported ... French was in Miami Beach Saturday, catching some rays and drinking vodka. It's not illegal in Florida to drink while boating, but it IS illegal to drink to the point that the driver is impaired.

Although our French sources insist he "was not f***** up," Khloe posted a pic around the same time showing her crew -- including French -- on Diddy's roof with the caption, "The Ciroc made us do it!! #StepIntoTheCircle."

3/30/2015 1:00 AM PDT BY TMZ STAFF

Someone else is digging into Lucious Lyon's pockets -- Terrence Howard's real life ex-wife is demanding a chunk of his "Empire" salary.

Michelle Howard is already supposed to get $5,800 per month from Terrence -- but according to new docs ... she stands to benefit greatly from his astronomical success on the FOX show, and here's why.

The deal is Michelle gets 21% of anything Terrence made over $62,500 in the first 3 months of this year. As we previously reported ... Michelle says Terrence pulls in $125k per episode -- and sources tell us 3 episodes were shot this year.

We did the math, and he needs to cut her a check for about $65k. That's just from his "Empire" money. Remember, Terrence has another show -- "Wayward Pines" -- debuting on FOX this year ... so she'll get some chunk of that.

Bottom line -- they had a nasty divorce, but it's safe to say Michelle's now rooting for Terrence.

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3/30/2015 7:00 AM PDT BY TMZ STAFF

EXCLUSIVE

Kylie Jenner may have had the last word in her watch-off with Blac Chyna, but Ms. Chyna is letting her arm do the talking.

You'll recall ... the 2 girls played the game, "Tyga loves me more" last week when Blac Chyna posted a pic of an expensive watch Tyga had given her back in the day, and then Kylie posted her watch -- almost identical to Blac Chyna's -- with the word, "Currently."

We got Blac Chyna cruising out of the Montage in Bev Hills Sunday night, and while she said nothing about the watch, she actually said a lot.

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3/29/2015 8:30 PM PDT BY TMZ STAFF

Jamie Foxx killed with Bruce Jenner transition jokes at the iHeart Radio Music Awards.

Foxx hosted the award show Sunday night in L.A. ... and in his opening monologue he teased the upcoming musical acts, saying Bruce Jenner would be performing -- "He's doing a his and her duet all by himself."

The jab scored big laughs -- Chris Brown was particularly amused -- and Jamie went back for more ... hitting Bruce right in the family jewels for his next punchline.

Watch the video ... Jamie's jokes were hardly groundbreaking -- lots of comedians have been using Bruce for material -- still ... arguably insensitive.